Adjustable fastener for grain-car doors.



No. 747,150. PATENTED DEU. 15, 1903.

. J. W. DAVIS. ADJUSTABLE FASTENEB. FOR GRAIN GARDOORS.

APPLICATION FILED JULY 7, 190s. v1w MODEL.

iigess v 1932910. l v c UNITED STATES Patented December 15, 1903.

JOHN WESLEY DAVIS, OF CLINTON, INDIANA.

ADJUSTABLE FAS-TENER FOR GRAIN-CAR DOORS.

SPECIFICATION formingpart of Letters Patent N 0. 747,150, dated December15, 1903. Application iiled July 7,1903. BerialNo.164.582. (No model.)

Indiana, have invented a new and useful Adjustable Fastener forGrain-Car Doors, of which the following is a specification.

This invention relates to fasteners for the -doors of grain-cars, andhas for its object to simplify and improve devices employed for thispurpose andto produce a door-fastening `which may be readily applied toany construction of door or car and which will be cheap and simple inconstruction, easily operated, and Vwhich will not be liable to becomedis-arranged while in use.

The invention consists iu certain novel features of construction, ashereinafter shown and describedand specifiedin the claims.

In the drawings illustrative 'of the inven tion, in which correspondingparts are denoted by like desiguating characters, Figure 11's a sideelevation from theinterior of a portion of a car with the improvementapplied. Fig. 2 is a plan view of the improved device with the car-framein section.

The car-frame is represented asa whole at l0, having a doorway-openingdefined by the side posts l1 `12 and floor 13 of the ordinary form.

Disposed adjacent to the side posts 11 12 are clamp-bars 15 16, formed,preferably, in Z shape in cross-section and connected, respectively, bypivoted space link-bars 17, 18, 19, and 20 to stop-bars 21 22, attachedto the framerlO and parallel to tie posts 11 12 and spaced therefrom, asshown.

The grain-doorv is represented at 23 of the usual form and overlappingthe inrer edges of the side posts and overlapped interiori of the car bythe clamp-bars 15 16 when thelatter are in their inward positions orwhen the link-bars are set in their downward positions, as shown inFig. 1. Then when the linkbars are moved into their upward positions theclamp-bars will be correspondingly moved into their outward positions,whiohiovement Lwill entirely uncover the grain-door and permit itsremoval bodily, as will be obvious. The upper link-bars will preferablybe extended into handles 23 24, by which means the clamp-bars 'may beoperated, as will be obvi- `I claim isous. When in their inwardpositions, the inner edges of the clampbars will be inalinement with theinner sides of the post numbers 11 f2, as shown', so that theirpresence'will not lessen the area of the doorway-opening. Formed throughthe lclamp-bars 15 16 are spaced slots 25, 26, 27,'and 28curved tocorrespond with the paths of the bars when operated, and fitting throughthese slots arepins 29, 30, 31, and 32, connected to the posts 11 12 orother part of the car-frame and provided with lateral heads extendingover the clamp-bars adjacent to the slots. By this means the clamp-bars,while left-fuse to be moved by the link-bars, cannot be detached fromthe car-body. The lower set of slots will preferably be covered by caps33 34 to prevent the grain from entering the slots and clogging them. A

Attached, as by chains 35 36, to the car-bod y are locking or spacerblocks 37 38, adapted to be inserted into the spaces between the stopsand clamp-bars, as shown in Fig. l, to eectually lock the clampbars intheir closed positions and prevent accidental displacement.

The interiors of the clamp-bars will be serrated, as shown at 39, toincrease the grip of the bars upon the edges of the door. By this simplemeans the grain-door is very firmly supported, and all tendency to workloose when subjected to the severe jarring strains incident tograin-cars when in motion and will be found very eEective for thepurposes described. l r

The parts may be of any suitable size and of any suitable material, butwill preferably be of metal except the door, andthe latter .may also beof metal; but doors of this character are generally of wood.

Having thus described my invention, what 1. Thecombinationwit'hacar-framehaving a doorway-opening, of a door having its side edgesoverlapping and bearing at its outer face upon the sides of the opening,clamping-bars overlapping the edges of the door and bearing upon theinner face thereof, said bars- TOO ing the bars,y and means vfor lockingthe bars ya doorway-opening, a door extending by its side edges over thesides of said opening,` clamp-bars connected for lateral"y movementrelative to said opening, stop-bars dpon said v car-frame parallel tosaid c1ampbars, spaced link-bars mov-ably connectedrespectively by theirends to said clamp-bars and to said stopbars, means for operating saidclamp-bars, and spacer-blocks adapted for insertion he-, tween saidstop-bars and clamp-bars, to lock said clampbars into engagement withsaid door,snbstantiall'y as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence ofl two witnesses.

JOHN WESLEY DAVIS.

A Witnes ses:

W. H. RoBIsoN, lD. P. MITCHELL.

